Updated April 21, 2026: We have paused rollout of Web, Mac, and Desktop releases. Android and iOS will continue to rollout as planned.
[Introduction]
We're introducing a new way to quickly summarize emails and attachments using Copilot chat in Outlook. With a single click, users can generate concise summaries of email content and attachments, helping them stay focused and save time. This feature is available to Android and iOS users with a Microsoft 365 Copilot license and pinning enabled.
This message is associated with Microsoft 365 Roadmap ID 503316.
[When this will happen:]
- Targeted Release (Worldwide): Rollout started early October 2025; completed mid-October 2025.
- General Availability (Worldwide): Began mid-October 2025; completed mid-October 2025.
[How this affects your organization:]
Who is affected: Users with a Microsoft 365 Copilot license and pinning enabled in Outlook across Android and iOS.
What will happen:
Users will see a new option to summarize email content using Copilot chat:

- The feature will be available across Android, Desktop, iOS, Mac, Web, and both Classic and New Outlook for Windows.
- No admin configuration is required; the feature is enabled by default for eligible users.
- Existing policies are respected; no changes to admin controls are needed.
[What you can do to prepare:]
- No action is required.
- You may choose to inform users about the new summarization capability.
- If desired, update internal documentation to reflect the availability of this feature.
[Compliance considerations:]
No compliance considerations identified, review as appropriate for your organization.
